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TS4621ML Datasheet(PDF) 7 Page - STMicroelectronics

Part # TS4621ML
Description  High-performance class-G stereo headphone amplifier
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4621ML Datasheet(HTML) 7 Page - STMicroelectronics

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TS4621ML
Typical application schematic
Doc ID 023181 Rev 1
7/40
2
Typical application schematic
Figure 1.
Typical application schematic for the TS4621ML
Table 3.
TS4621ML pin description
Pin number
Pin name
Pin definition
A1
SW
Switching node of the buck converter
A2
AVDD
Analog supply voltage, connect to battery
A3
VOUTL
Output signal for left audio channel
A4
INL-
Negative input signal for left audio channel
B1
AGND
Device ground
B2
C1
Flying capacitor terminal for internal negative supply generator
B3
HPVDD
Buck converter output, power supply for amplifier
B4
INL+
Positive input signal for left audio channel
C1
C2
Flying capacitor terminal for internal negative supply generator
C2
PVSS
Negative supply generator output
C3
CMS
Common-mode sense, to be connected as close as possible to the
ground of headphone/line out plug
C4
INR+
Positive input signal for right audio channel
D1
EN
Amplifier enable
D2
GAIN
Amplifier gain select
D3
VOUTR
Output signal for right audio channel
D4
INR-
Negative input signal for right audio channel
Rout
12 ohms min.
Rout
12 ohms min.
Cout
0.8 nF min.
Cout
0.8 nF min.
Cin
1 uF
Cin
1 uF
Cin
1 uF
Cin
1 uF
1
2
3
J1
C12
2.2 uF
Cs
2.2 uF
Css
2.2 uF
Ct
10 uF
L1
3.3 uH
Vbat
+
-
Negative
supply
Positive
supply
AGnd
C1
C2
EN
GAIN
AVdd
InL-
InL+
InR+
InR-
VoutL
VoutR
CMS
Level
detector
Level
detector
Sw
HpVdd
PVss
Negative left input
Positive left input
Negative right input
Positive right input
AM06119
Interface


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